Rotating #Mathematical #Table , Sinclair's #Freight #Computerhttps://www.si.edu/object/rotating-mathematical-table-sinclairs-freight-computer:nmah_690834
#1860s
#Geometric #Model by A. Harry Wheeler, Five #Intersecting Regular #Octahedra #Inscriptible in a Regular #Dodecahedronhttps://www.si.edu/object/geometric-model-harry-wheeler-five-intersecting-regular-octahedra-inscriptible-regular-dodecahedron:nmah_1691577
#math
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.
